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Modern SDR Transceiver specificaly developed for DXing & Contesting. HF and VHF coverage.

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1 590,00 € tax incl.

-400,00 €

1 990,00 € tax incl.

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The SunSDR2 PRO transceiver is designed for advanced use in HF and VHF bands. Even the most experienced operator will be surprised by its capabilities. The modern hardware in a small physical size makes this high performance SDR transceiver the perfect base station while at the same time very portable for field operations.

SunSDR2 PRO has a special connector for controlling the external devices. It allows to connect to it practically any power amplifiers, rotators, narrow band pass filters, etc. With a help of this capability your place can become a professional studio for work in the air.

The SunSDR2 PRO is perfect for contesting. Its powerful and flexible software lets you create custom designed station setups for many different types of contest efforts.

Main capabilities

  • Separate independent receive path based on Direct Down Conversion principle (DDC)
  • Separate independent transmitter, based on the Direct Up Conversion principle (DUC)
  • Full or half-duplex mode *
  • Antenna switch for 2 antennas in HF
  • Built-in power-meter and SWR-meter in HF band
  • External control connector for other devices, 10 powerful keys with open collector
  • ALC connector for external power amplifiers
  • Input connector for connecting PTT footswitch
  • Input connector for connecting CW-key
  • Output Jack for headphones, impedance 8-1000 Ohm
  • Microphone input Jack for electret microphone
  • Microphone connector with PTT switch Yaesu MH-31,which contains microphone, PTT button and 3 additional functional buttons
  • Protection from polarity reversal
  • Ethernet LAN interface provides galvanic isolation between transceiver and PC
  • Transceiver's calibrations are kept inside the device. No need for primary calibration
  • Possibility of remote work. PTT footswitch and CW-key are connected to the E-Coder panel, microphone – to the PC

* Full duplex mode is supported by the transceiver's hardware, but is not software implemented. This mode will be supported in the future ExpertSDR2  software versions.

Application field

  • Radio Amateur HF/VHF transceiver
  • Remote reception point for contests
  • SO2R/SO2V working contest-station
  • Spectrum analyzer with the spectrum scope up to 80MHz
  • Record air stations with the further reproducing

PC requirements

  • CPU Intel Core i3 1.6 GHz and higher
  • Video card, minimum resolution 1024x600, 128 MB, OpenGL 1.5 support and higher
  • Local network connector 100 Mbps or 1 Gbps
  • OS Windows XP/7/8 x32 or x64, OS Linux Ubuntu x64


ExpertSDR2 software is used to support SunSDR2 PRO transceiver.

Two OS types are supported : Windows XP/Vista/8 и Linux Ubuntu/Kubuntu.

Block diagram

Block Diagram SunSDR2 PRO

Transceiver SunSDR2 PRO configuration

  • Transceiver SunSDR2 PRO
  • LAN-cable for connecting to local network (1.8m)
  • Power cable for connecting the transceiver to power supply (2m)
  • Audio-adapters  JACK 6.3mm to JACK 3.5mm for connecting PC's headset to transceiver (2 pcs.)
  • CD-disk with software (Software can be also downloaded from our web-site)
  • RF Cable MiniUHF-Male to PL259-Female 1Ft (0.3m)
Modulation types* LSB/USB/DSB/CW/AM/SAM/NFM/WFM
General coverage receiver in HF, MHz 0.09...65
General coverage receiver in VHF, MHz 95...148
Frequency coverage in HF in TX mode, MHz All amateur frequencies
Frequency coverage in VHF in TX mode, MHz 144...148
Sensitivity, uV 0,07
Nominal transmitter's output power in HF, W 20
Nominal transmitter's output power in VHF, W 8
Blocking dynamic range in HF mode (BDR), dB 129

Blocking dynamic range in VHF mode (BDR), dB

RF type of ADC LTC2209, Linear Technology
RF ADC clock frequency, MHz 160
RF ADC resolution, bit 16
RF DAC clock frequency, MHz 640
RF DAC resolution, bit 14
Recommended power supply, V 15
Local oscillator's stability, ppm +/- 0.5
Supply voltage range, V 12...16
Maximum consumption current, А 5
Built-in audio codec resolution, bit 24
ALC input voltage range, V 0..4
Operating temperature, ºC 0...+75
Dimensions, mm 165х165х35
Weight, kg 1,5

* - larger amount of modulations can be supported with a help of external software


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Modern SDR Transceiver specificaly developed for DXing & Contesting. HF and VHF coverage.